This Chair mat if obviously used on carpet because of the spiked backing. However unless you have some super hard carpet in your office this chair mat WILL crack and start to fall apart from the chair wheels rolling back and forth. Mine lasted just about 1 year but stated to crack within 4-5 months. Now that large chunks are missing it's finally unusable. My office carpet is the standard tight weaves closed loop kind you would find anywhere. This char mat is designed to fail; too thin & too soft... You have been warned; only with I followed the advice of the other reviewers...
The mat came quickly to my house a bit dirty but was able to clean it. It never straightened out completely some borders are still raised even after a few weeks of use it's a hazard. The mat is very narrow it's only slightly wider than the rolling chair if we move the chair a bit to the sides it's out of the mat and on the wood. The mat moves all the time and it's annoying and dangerous. Since then I've bought another mat from the Swedish competitor slightly larger less than half the price and it's great sticks to the floor and I haven't felt it at all which is what you would expect from a chair mat.